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Application

Due to its universal design the RMA42 process transmitter is suitable for many industries such as chemical, water and waste water and food and beverages. Typical applications include monitoring of signals for any violation of preset limit values (also to WHG) as well as transmission of signals from hazardous areas, differential pressure applications and signal multiplying. RMA42 can be installed in a switch cabinet or used in a field housing.

Function

The RMA42 process transmitter powers the transmitter or sensor and processes the analog signals from those. These signals are monitored, evaluated, calculated, saved, separated, linked, converted and displayed. The signals, intermediate values and the results of calculations and analysis are transmitted by digital or analog means. With the two relays the process can be controlled.

Dimensions (in mm)

Electrical connection

Technical Datasheet

Application Example: Differential pressure measurement

Differential pressure measurements are no more complicated or expensive than an RMA42 process transmitter coupled with a pair of Cerabar pressure sensors. The signals from the pressure sensors are transmitted to the RMA42.

Inside the RMA42, the set analog input parameters are used to automatically calculate the difference between both pressures, hence the filling level value. The linearization of the level value then in turn allows calculating the volume. As a result, the level and the volume can be shown on the display and the values can be transmitted to other systems using the analog outputs of the device.In addition, the RMA42 process transmitter possesses an integrated loop power supply and manages the sensors' power supply.

The same instruments combination is perfectly fit either to control the condition of a filter and to monitor a pump.

Note that the RIA45 display for panel mounting and the the RIA46 display in field housing can be used like the RMA42.